. >> brian todd is there in north pennsylvania for us. thank you. >>> turning to syria, the united states insists that the rebel group is is a terrorist will not weaken the regime. sanctions were slapped on the leader of the group only hours after it was back listed by the state department. our senior international correspondent arwa damon is inside syria with an extraordinary look at one rebel fighting the battle with an exclusive homemade recipe. >> reporter: with the precision of a master chef, he adjusts the flame. in the pan, table sugar and a chemical compound bought locally that we've agreed not to name. it's almost ready, he says, as the color darkens. he doesn't want his face shown. he has decades of experience in the art of war. he says he fought with the palestinians twice by the israelis in the 1980s. but they had more mercy than the assad regime. he adds bitterly. now he's using his training and weapons design that he got in libya. this amount combined with another substance is what he uses to make a single grenade. when it comes to making the prop pell lants for a rocket, it
